Definitions
The transfer of heat in a fluid is ...
convection
The transfer of heat through a solid material by the direct contact of particles is ...
Conduction
The sun heats up the Earth
Radiation
You are holding an ice cube in your hand. The heat flows from _______ to _______
hand to ice cube
The transfer of heat through empty space by invisible electromagnetic rays is ...
Radiation
The flow of energy from warmer to cooler places due to different in temperature is ...
Heat
You are cooking an egg on a frying pan.
Conduction
If a 20 ℃ block and a 40 ℃ block are touching, thermal equilibrium would cause the blocks to do what?
Both become 30 ℃ overtime
The measurement of the average kinetic energy of the particles of an object or substance is ...
Temperature
Materials that allow heat energy to move through them efficiently are known as ...
Conductors
Hot steam is piping out of a teapot
Convection
As an object gets hotter, what happens to the amount of kinetic energy and the movement of the particles?
Increases
When heat flows from a higher temperature object to a lower temperature object until the two objects have the same temperature this is referred to as ...
Thermal Equilibrium
Materials that do not allow heat energy to pass through them well are known as ...
Insulators
You are warming up your leftovers in the microwave.
Radiation
Why would you manufacture a cooking pot to have silicon handles instead of metal handles?
Silicon = insulator
metal = conductor
Metal would conduct the heat from the food in the pot to your hand and burn you. Silicon is an insulator and does not conduct heat.
Explain thermal equilibrium
Two objects of differing temperatures are touching. Thermal equilibrium will result in both objects becoming the same temperature over time.
Explain the difference between temperature and heat in terms of the particles.
Temperature is the measurement of how fast the particles are moving.
Heat is the flow of thermal energy from higher to lower temperatures.
You are boiling water on the stove top.
The boiling water is ...
and
The pot on the stove top is ...
Convection
Conduction
Why is radiation the primary mode of heat transfer from the sun to the Earth?
There is no air to conduct or convect heat in space.
No conduction because the Earth and sun do not touch. No Convection because there are no fluids in space.